Switching from RM-915 to RM-914?

[alanot]

Is it possible to switch from a RM-915 product code to a RM-914 one?

For those who don't know, flashing a RM-915 product code from another region is possible, but it voids your warranty.

I don't care about warranty, just want to try Cyan Update from FR ORANGE.

Has anyone tried it?

 

[alanot]

Nevermind, an error message shows up:

0x00030007: The boot loaders in FFU file are not signed for this device. RKH of device: 7C81AABA97E4904DB782605A6C74A59480361E5A363337B2EF5B8F925763110B. RKH of FFU image: F771E62AF89994064F77CD3BC16829503BDF9A3D506D3FACECAEF3F808C868FD

Exception:
Nokia.CareSuite.PlugIns.MurzimRecovery.RecoveryDialog.MurzimProgrammingException: 0x00030007: The boot loaders in FFU file are not signed for this device. RKH of device: 7C81AABA97E4904DB782605A6C74A59480361E5A363337B2EF5B8F925763110B. RKH of FFU image: F771E62AF89994064F77CD3BC16829503BDF9A3D506D3FACECAEF3F808C868FD

at Nokia.CareSuite.PlugIns.MurzimRecovery.RecoveryDialog.RecoveryDialogModel.Flash()
at Nokia.CareSuite.PlugIns.MurzimRecovery.RecoveryDialog.RecoveryDialogModel.<HandleDownloadVariantPackageCompleted>b__b(Object state)

 

[GuptaSaurabh]

Hi
Were you able to proceed further? I'm on RM-914 and want to move to RM-915 so that I can use 3G in USA :-
HSDPA 900 / 2100 - RM-914
HSDPA 850 / 1900 / 2100 - RM-915
HSDPA 850 / 1700 / 1900 / 2100 - RM-917

Is this viable? When I try to flash with 059S2D1 I get the same error:-

0x00030007: The boot loaders in FFU file are not signed for this device. RKH of device: F771E62AF89994064F77CD3BC16829503BDF9A3D506D3FACECAEF3F808C868FD. RKH of FFU image: 7C81AABA97E4904DB782605A6C74A59480361E5A363337B2EF5B8F925763110B

Exception:
Nokia.CareSuite.PlugIns.MurzimRecovery.RecoveryDialog.MurzimProgrammingException: 0x00030007: The boot loaders in FFU file are not signed for this device. RKH of device: F771E62AF89994064F77CD3BC16829503BDF9A3D506D3FACECAEF3F808C868FD. RKH of FFU image: 7C81AABA97E4904DB782605A6C74A59480361E5A363337B2EF5B8F925763110B

at Nokia.CareSuite.PlugIns.MurzimRecovery.RecoveryDialog.RecoveryDialogModel.Flash()
at Nokia.CareSuite.PlugIns.MurzimRecovery.RecoveryDialog.RecoveryDialogModel.<HandleDownloadVariantPackageCompleted>b__b(Object state)

 

[aziouazrayes]

Do you know any PORTICO ROM for the 520 that still exists? I want to downgrade to it because of the yellow tint issue in the camera since the AMBER and BLACK updates.

 

[Marcelo Velazquez]

You cannot flash a RM 915 with a RM 914 as they have diferent internals. You can swap product codes but not RMs.

 

[Marcelo Velazquez]

Do you know any PORTICO ROM for the 520 that still exists? I want to downgrade to it because of the yellow tint issue in the camera since the AMBER and BLACK updates.

You can use navifirm+ to get access to any rom launched for a phone. The only requirement for you is to know which product code you want to flash, and use Nokia care to do it

 

[aziouazrayes]

You can use navifirm+ to get access to any rom launched for a phone. The only requirement for you is to know which product code you want to flash, and use Nokia care to do it

What is the product code for a rom that's on PORTICO for the LUMIA 520, cn you help me with that. I've been searching all day. I was also wondering if CYAN fixes the post processing bug that came with AMBER and BLACK so I won't have to downgrade to PORTICO.
Please Sir, help me.

 

[Marcelo Velazquez]

I'm not sure to tell you if it is solved. I didn't notice it. Give cyan a try, it is worth it. For portico rom, maybe you can use the at&t one. 059t105

 

[aziouazrayes]

Won't the AT&T one lock the phone to AT&T? Mine is Country Variant so if I try AT&T I won't be able to use my SIM (ALGERIA)

Oh, thank you

 

[Marcelo Velazquez]

It doesn't lock it. I use a Claro blocked Phone with an at&t rom and no problems, only a lot of bloatware

 

[aziouazrayes]

It doesn't lock it. I use a Claro blocked Phone with an at&t rom and no problems, only a lot of bloatware

Where can I find the rom so I can download it? Can you post a link!

 

[Marcelo Velazquez]

You have to use the app navifirm+ on your computer. There are a lpt of tutorials on how to do it, is pretty straightforward